Remove exhaust camshaft adjuster
WARNING:
Working on 12 V electrical system.
Risk of short circuits! Risk of fire!
Risk of short circuits! Risk of fire!
- Make sure that there is no charger connected to the jump start terminal in the engine compartment.
- Detach battery ground lead from battery.
- For auxiliary batteries: Detach battery minus cables from all auxiliary batteries.
WARNING:
Working on fuel system.
Risk of fire! Danger of explosion!
Risk of fire! Danger of explosion!
- When working on the fuel system, make sure the workstation has sufficient ventilation, e.g., by means of extraction.
- Tightly seal off open lines and connections; collect any leakage fuel directly at the point of exit.
- No fire, sparks, open flames or smoking.
Preliminary work
- Disconnect all battery GROUND LEADS .
- Remove the front UNDERBODY PROTECTION .
- Remove the center UNDERBODY PROTECTION .
- Remove rear UNDERBODY PROTECTION .
- Bring front compartment lid in the SERVICE POSITION .
- Remove the ACOUSTIC COVER .
- Remove the hood rear SEAL .
- Remove the rear left engine compartment COVER .
- Remove the rear right engine compartment COVER .
- Remove left and right WIPER ARM .
- Remove the cowl COVER .
- Remove the left and right shock tower TENSION STRUT .
- Remove the upper part FIREWALL .
- Remove rear ACOUSTIC COVER .
- Remove right sealing FRAME .
- Remove the bottom second FIREWALL .
- Remove intake silencer HOUSING .
- Remove RESONATOR .
- Remove clean AIR PIPE .
- Remove charge AIR LINE .
- Remove IGNITION COILS .
- Remove all SPARK PLUGS .
- Remove the cylinder head cover ACOUSTIC COVER .
- Remove the HIGH PRESSURE LINE between the high pressure pump and the rail.
- Remove FUEL DELIVERY LINE .
- Remove HIGH PRESSURE PUMP .
- Remove HIGH-PRESSURE RAIL .
- Remove the engine front ACOUSTIC COVER .
- Remove both ACTUATORS .
- Remove the cylinder head COVER .
- Remove STARTER MOTOR .
- Turn the ENGINE on the vibration damper.
- Block the CRANKSHAFT in the TDC firing position of the first cylinder (automatic transmission).
- Block the CAMSHAFTS .
- Remove chain TENSIONER .
- Release the VANOS CENTRAL VALVE .
- Remove exhaust side VANOS CENTRAL VALVE .
CAUTION:
On releasing high pressure line, fuel may emerge at high speed.
Injury hazard!
Injury hazard!
- Wear suitable personal protective equipment.
- Before performing any installation work, allow cooling system to cool down to less than 40°C.
- Note warnings on cylinder head cover.
NOTE:
RISK OF DAMAGE
Damage to battery terminal, the safety battery terminal or the intelligent battery sensor (IBS).
Damaged battery terminals can lead to malfunctions or vehicle electrical system faults.
Damage to battery terminal, the safety battery terminal or the intelligent battery sensor (IBS).
Damaged battery terminals can lead to malfunctions or vehicle electrical system faults.
- Detach battery terminal from battery pole. Do not pry off using a tool.
NOTE:
TECHNICAL INFORMATION
After replacing one or more VANOS central valves or VANOS adjusters:
When removing, make note of the identification/part number of the VANOS central valve or VANOS adjuster and consider writing it down.
It must be replaced with a VANOS adjuster or VANOS central valve with the same part number. A mixed installation is not allowed.
Read out the vehicle I-level and proceed accordingly.
Be absolutely certain to pay attention to PuMA measure 64122020.
For further information, see the applicable BMW Parts Catalog.
After replacing one or more VANOS central valves or VANOS adjusters:
When removing, make note of the identification/part number of the VANOS central valve or VANOS adjuster and consider writing it down.
It must be replaced with a VANOS adjuster or VANOS central valve with the same part number. A mixed installation is not allowed.
Read out the vehicle I-level and proceed accordingly.
Be absolutely certain to pay attention to PuMA measure 64122020.
For further information, see the applicable BMW Parts Catalog.
- Remove VANOS central valve (1) of the exhaust side in arrow direction.
- Remove the exhaust camshaft adjuster (1) from the exhaust camshaft and feed out from the rear of the timing chain.